I knows it's been posted before but I can't find it so I have to ask again. I wanted to check my ratio so I raised one rear tire and marked the axle and tire. The tire turned 1/2 when the axle turned 1. Then the tire turned slightly more than 1 when the axle turned 2 times. Then it just progressed from there, tire turning slightly more each time with the axle turning 1 time. Yesterday a friend told me something about a locking diff acting differently but I can't remember. Help please.